ROANOKE, Va. – UPDATE
VDOT says this crash has been cleared.
Drivers should avoid I-81S in Roanoke County if they can due to a tractor crash causing delays, according to VDOT.
Authorities say the crash happened near the 138.4 mile marker and has led to a 3-mile traffic backup.
As of 7:53 a.m., the south right lane and right shoulder are closed.
Stay with 10 News for the latest traffic updates